77682910544 has 10 divisors (see below), whose sum is σ = 150510639210. Its totient is φ = 38841455264.

The previous prime is 77682910517. The next prime is 77682910567. The reversal of 77682910544 is 44501928677.

It can be written as a sum of positive squares in only one way, i.e., 73447504144 + 4235406400 = 271012^2 + 65080^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2427590939 + ... + 2427590970.

It is an arithmetic number, because the mean of its divisors is an integer number (15051063921).

Almost surely, 2^77682910544 is an apocalyptic number.

It is an amenable number.

77682910544 is a deficient number, since it is larger than the sum of its proper divisors (72827728666).

77682910544 is a wasteful number, since it uses less digits than its factorization.

77682910544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4855181917 (or 4855181911 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 77682910544 in words is "seventy-seven billion, six hundred eighty-two million, nine hundred ten thousand, five hundred forty-four".